In Camille Minichino's sixth Periodic Table mystery, The Carbon Murder, retired Revere, Mass., physicist Gloria Lamerino and her homicide cop boyfriend, Matt Genaro, fear for the life of Gloria's godchild, Mary ""MC"" Catherine Galigani, who's returned home after doing carbon-based research for a tech firm in Houston, Tex. The murder in a Revere park of a young woman MC knew in Houston raises the ante. Agent, Elaine Koster.